Eaton transformer relay ETR-4000-2A2CA0 - Modbus TCP

Part Number: ETR-4000-2A2CA0
ETR-4000-2A2CA0
Manufacturer
Eaton
Part number
ETR-4000-2A2CA0
Category

Quick Summary

Eaton transformer relay ETR-4000-2A2CA0 is a transformer protection relay designed to monitor and guard critical transformer assets in industrial power systems. This solution helps engineers avoid unplanned outages by delivering precise protection logic and reliable diagnostics in real time. While integration can pose challenges in busy switchgear rooms, the ETR-4000-2A2CA0 offers flexible power options and straightforward Ethernet connectivity to streamline deployment. Typical certifications pursued for transformer relays in today’s markets include CE compliance, safety-related SIL ratings where applicable, and robust IP-rated enclosures; verify exact certifications with Eaton for your region. The device also supports Modbus TCP over Ethernet for seamless plant-wide data sharing and improved asset health monitoring.

Product Information

Extended Description

ETR-4000-2A2CA0 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay,5A, 1A, 40-250 Vac, 19-300 Vdc, 8, 9,Transformer, over Ethernet RJ-45, 19-300Vdc, 40-250Vac, 50/60 Hz Trip Coil MonitorSensitive Ground Input,
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A2CA0
UPC
786679155066
Product Length/Depth
8.06 in
Product Height
8.7 in
Product Width
9.72 in
Product Weight
9.3 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Compliances
Contact Manufacturer
Application
Transformer
Type
Transformer relay
Product Category
Transformer protection relay
Analog inputs
0
Analog outputs
0
Base relay
ETR-4000
Conformal coating
None
Communication
Modbus TCP or DNP3 TCP/UDP over Ethernet RJ45
Current sensing inputs
2
Digital inputs
8
Digital outputs
9
I/O options
URTD Interface Trip Coil Monitor Sensitive Ground Input IRIG-B
Modbus / DNP3 RTU
over Ethernet RJ-45
Phase current
5A, 1A
Sensing inputs
Differential Protection Current Protection and Metering
Zone selective interlocking
2
Number of inputs
8
Number of outputs
9
Power supply range
19-300Vdc, 40-250Vac
Frequency rating
50/60 Hz
Power consumption
40-250 Vac, 19-300 Vdc
Number of inputs
8
Number of outputs
9
Power supply range
19-300Vdc, 40-250Vac
Power consumption
40-250 Vac, 19-300 Vdc
Frequency rating
50/60 Hz
Terminals
Removable
Mounting method
Semi-flush
Voltage sensing inputs
0
Terminals
Removable
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Power system compatibility and flexible power supply options reduce installation complexity and enable rapid deployment across sites with varying voltages; you gain reduced commissioning time and fewer power supply adapters, improving overall project timelines. The 8 digital inputs, 9 digital outputs, and 2 current sensing inputs enable comprehensive protection logic and smart interlocking; this supports precise fault isolation and minimal disruption to surrounding equipment, which translates to lower maintenance costs and higher uptime. Modbus TCP or DNP3 TCP/UDP over Ethernet RJ45 enables seamless integration with SCADA, EMS, and energy meters, delivering real-time visibility and centralized control without added interface hardware. I/O options such as URTD Interface, Trip Coil Monitor, Sensitive Ground Input, and IRIG-B provide time-synced event reporting and robust trip verification; this is critical for coordinated protection schemes in substations and OEM equipment. Removable terminals and semi-flush mounting simplify installation and future servicing, reducing on-site labor and upgrade downtime. The warranty and Eaton support policy offer predictable ownership costs and access to expert support, helping justify capital expenditure through improved protection reliability and ROI.

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FAQs

Begin by evaluating enclosure space and ensuring the semi-flush mounting clearance. Remove and reconnect the removable terminals as per Eaton’s installation guide, then secure the unit to the panel. Verify that supply rails meet the 19-300Vdc or 40-250Vac range, and connect the Ethernet RJ45 for Modbus TCP or DNP3. Finally, configure input/output mapping and protection logic to match the transformer and plant topology. This approach minimizes commissioning time and reduces the risk of wiring errors.
The ETR-4000-2A2CA0 provides 8 digital inputs and 9 digital outputs, plus 2 current sensing inputs for differential and current protection. Zone selective interlocking is supported to improve selectivity during faults. This I/O density enables robust protection logic, coordinated tripping, and accurate event reporting, which are essential for transformer protection across medium to large installations.
The relay supports Modbus TCP and DNP3 TCP/UDP over Ethernet RJ45, allowing straightforward integration with common SCADA and EMS platforms. This enables real-time data streaming, remote diagnostics, and centralized protection logic across distributed transformer installations, reducing engineering effort and enabling faster fault diagnosis.
Compliances are listed as manufacturer-verified; confirm exact certifications with Eaton for your region. Typical considerations for transformer relays include CE compliance for Europe, potential SIL safety ratings for safety-critical applications, and enclosure protection standards. Always validate the specific certifications and the installation environment requirements with Eaton to ensure regulatory alignment and safe operation.
The product follows Eaton’s warranty policy: one year from installation or eighteen months from shipment, whichever occurs first. ROI benefits come from improved protection reliability, reduced outage duration due to faster fault isolation, streamlined maintenance with integrated diagnostics, and easier integration with existing control systems via Modbus TCP or DNP3, all contributing to lower lifecycle costs.